Math, asked by kritikarunwal2008, 5 days ago

9. A is twice as fast as B and together they can com- plete a work in 20 days. In how many days can A alone complete the work?​

Answers

Answered by bson
1

A is twice as fast as B means

if A takes x days to finish, B takes 2x days

1/x +1/2x =1/20

x= 30

x is 30 days and 2x is 60 days

so A takes 30 days

Similar questions